Question:

The following set of reactions are used in refining zirconium. $Zr (impure) + 2I_2$ ${->[523K]}$ $ZrI_4$ ${->[1800K]}$ Zr (pure) + $2I_2$ This method is known as

KEAM

Updated On: Jun 6, 2022

Distillation
Liquation
Hall-Heroult method
Van Arkel method

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The Correct Option is D

Solution and Explanation

Answer (d) Van Arkel method

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Concepts Used:

General Principles and Processes of Isolation of Elements

What are Ores and Minerals?

Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.

Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.

Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –

Concentration of the ore
Isolation of the metal from its concentrated ore
Purification of the metal

The following set of reactions are used in refining zirconium. Zr(impure)+2I2Zr (impure) + 2I_2Zr(impure)+2I2​ −>[523K]{->[523K]}−>[523K] ZrI4ZrI_4ZrI4​ −>[1800K]{->[1800K]}−>[1800K] Zr (pure) +2I22I_22I2​ This method is known as